diff options
| author | Chris Zhou <chris_zhou@compal.corp-partner.google.com> | 2019-02-19 15:56:15 +0800 |
|---|---|---|
| committer | Duncan Laurie <dlaurie@chromium.org> | 2019-02-20 03:14:26 +0000 |
| commit | ba269fd77ee6582f3fac131e340803ec1ac1a81b (patch) | |
| tree | a1eb8f4cec10259b1edda480fed5e3c8097b4728 | |
| parent | 34745f613f4a2970b2298bd76bfaf737229a4a3a (diff) | |
mb/google/sarien/variants/sarien: Adjust TP/TS I2C CLK to meet spec
After adjustment on Sarien EVT
Touch Screen CLK (Elan): 389.7 KHz
Touch Screen CLK (Melfas): 377.7 KHz
Touch Pad CLK: 385 KHz
BUG=b:122657195
BRANCH=master
TEST=emerge-sarien coreboot chromeos-bootimage
measure by scope with sarien.
Signed-off-by: Chris Zhou <chris_zhou@compal.corp-partner.google.com>
Change-Id: I53b60354e5a7a0ace8efb677775c0a9f8779061d
Reviewed-on: https://review.coreboot.org/c/31476
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
| -rw-r--r-- | src/mainboard/google/sarien/variants/sarien/devicetree.cb | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/src/mainboard/google/sarien/variants/sarien/devicetree.cb b/src/mainboard/google/sarien/variants/sarien/devicetree.cb index bcd3c26abb..df22affcd9 100644 --- a/src/mainboard/google/sarien/variants/sarien/devicetree.cb +++ b/src/mainboard/google/sarien/variants/sarien/devicetree.cb @@ -157,12 +157,12 @@ chip soc/intel/cannonlake .chipset_lockdown = CHIPSET_LOCKDOWN_COREBOOT, .i2c[0] = { .speed = I2C_SPEED_FAST, - .rise_time_ns = 190, - .fall_time_ns = 120, + .rise_time_ns = 100, + .fall_time_ns = 80, }, .i2c[1] = { .speed = I2C_SPEED_FAST, - .rise_time_ns = 52, + .rise_time_ns = 80, .fall_time_ns = 110, }, .i2c[4] = { |